Lutz, who plays vampire Emmet Cullen in the hit movie franchise, is the latest Hollywood hunk stripped bare for the fashion house's underwear campaign.
And Reed, who plays his on-screen sister Rosalie, is proud of her pal's sexy shots.
She tells E! Online, "I think he looks fantastic. I'm actually really proud of him.
"It takes a lot of balls, no pun intended, to stand and pose like that. I wouldn't have the guts to stand there naked like that."
Lutz recently revealed he wanted to follow in the footsteps of Mark Wahlberg - whose famed Calvin Klein underwear campaign in the '90s led to a huge film career.
"It didn't go too well. She didn't like him at all. He was a pleasure. I have worked with so many women, great ones, and Kate was always difficult." Fashion designer CALVIN KLEIN admits a 1990s photoshoot with KATE MOSS and MARK WAHLBERG was disastrous.
Sexy EVA MENDES is to launch a new line of crockery inspired by her Latino roots. The enterprising actress and Calvin Klein model has already branched out with her own luxury bedding range. Mendes' new Vida For Espana tabletop collection will debut at Macy's stores across America next month (Feb10).
The star started out as a model for American clothing brand Abercrombie & Fitch before pursuing a career in acting and shooting to fame as vampire Emmett Cullen in the hit movie franchise.
Now Calvin Klein underwear bosses want to cash in on the 24 year old's rising popularity and have reportedly signed Lutz up to front their next advertising campaign.
And fashion insiders claim Lutz's photoshoot will be reminiscent of the sexy ads featuring Mark Wahlberg, which were shot in the 1990s during the actor's transition from rap alter ego Marky Mark to Hollywood star.
A source tells the Fox News 411 blog, "He's going to be their new Mark Wahlberg. Kellan has been signed to Calvin Klein for a huge campaign that will feature him in his skivvies (underwear) all over billboards and in magazines…
"The executives have a plan to model the ads very similarly after the famous Mark Wahlberg campaign in the '90s. They want to recreate the look of the hugely successful ads."
The actress' latest billboard ad for the fashion firm has temperatures rising, particularly a poster in downtown New York City that shows the half-naked star sprawled across an entire city block.
Critics have protested and want the poster pulled down, but Mendes insists they're wrong.
She says, "It's a religious group that has a problem with the image. That's what I love about this country. We can voice our opinions and beliefs like that. But they're wrong. I don't think I'm traumatising any children. I think it's a really tasteful and beautiful ad."
The sexy actress has shed her clothes for a saucy Calvin Klein ad campaign, posing on a bed dressed just in a skimpy bra and panties.
And Mendes admits she doesn't worry about posing in just her underwear, because she always has the upper hand with her bosses.
She tells Fox News, "I don't allow myself to be typecast, but when I have to turn up the heat and turn up the sexuality and I do an amazing Calvin Klein campaign it's very conscious, that's no accident. It's very methodical on my part.
"If I feel it's appropriate to show some nudity in the scenes then I go for it. As much as I use my sexuality, I have never felt exploited. I feel like it's on my terms and I have no problem with it."
Mendes' latest ad for Calvin Klein shows her sprawled on a bed with male model, dressed just in a skimpy bra and panties.
The billboard spans an entire block in Soho and has split Manhattanites between admirers and angry residents who have dubbed it "pornography".
It's not the first Mendes ad to cause controversy - a campaign was pulled in the U.S. last year (08) after censors ruled it was obscene.
The former Calvin Klein poster boy - married to Moore for almost four years - often joins his wife she searches for designer clothes, donned by stunning models on the catwalk.
But the actor admits their trips to fashion events make him nervous, because he's constantly pretending he's not ogling other women in front of his wife.
He says, "I was in the fashion business when I was like 19 years old, so I knew a little bit about it (fashion).
"We started actually going (to shows), which is actually a very difficult thing to do, because there are all these hot models roaming around and you have to pretend you're not looking at the models. And so it's like, well, 'Wow, look at that pleated shoulder! That's all I was looking at - just the shoulder.'".
The actor/producer admits his life was so miserable when he first arrived in the Big Apple he'd romance lusty girls in a bid to find a good place to sleep.
He tells Parade magazine, "It was always a good thing to hook up with a girl... (I) got to sleep some place nice for the night. I wasn't there to stay, but, if you did hit it off with a girl, her place was always nicer than yours.
And Kutcher reveals he was so broke in the years before he became an actor, heading home to Iowa for Christmas with his family was a humbling experience.
He explains, "I was running out of money. I knew I had to go home for the holidays, but I couldn't expose the fact that it wasn't going well.
"So I bought my whole family these fake watches and fake Versace pants and fake anything I could find, like fake Calvin Klein T-shirts, so I could take them home and show them how well I was doing, even though I didn't have a place to live.".
Based on books by Besson (yes he writes books too) we meet Arthur (Freddie Highmore) a 10-year-old kid living on his grandparents’ farm. But there’s trouble: Arthur’s grandfather has mysteriously disappeared and now a real estate developer wants the land Arthur’s grandma (Mia Farrow) doesn’t have enough money to keep. Maybe the solution lies in his grandpa's treasure which is hidden somewhere on the "other side" in the land of the Minimoys. Who are the Minimoys you ask? Why they are creatures that live in Arthur’s backyard just a tenth of an inch tall--that’s who. The only hope is for Arthur to enter into this miniature world become a little pointy-earred wild-haired Minimoy find the treasure in the forbidden city and save the day. For this adventurous boy that’s no problem. Arthur and the Invisibles doesn’t lack star power that’s for sure. Along with sweet-faced high-spirited Highmore (taking a step down from Finding Neverland and Charlie and the Chocolate Factory in my opinion) and Farrow (who looks a little Minimoy-ish herself) we have the voices of: Madonna as the plucky Minimoy warrior princess; Jimmy Fallon as her younger klutzy brother; Robert De Niro as their father the king; Harvey Keitel as a kindly wizard; Snoop Dogg as a weird-looking miniature denizen who runs a dance club; and David Bowie as the evil ruler of the forbidden city. That’s some eclectic lineup--too bad they couldn’t all click. Poor Madonna--even her animated voice-over efforts can’t make the grade. We all know how creative French filmmaker Luc Besson can be. His offbeat sensibilities can be seen in his tense crime dramas La Femme Nikita and The Professional as well as his wildly imaginative sci-fi cult favorite The Fifth Element. But he’s been taking a break from making his own films producing and apparently writing children’s books instead. Arthur and the Invisibles is his first directorial effort since the 1999 movie The Messenger: The Story of Joan of Arc and while it definitely taps into Besson’s fanciful notions--which is probably even more evident in the novels--it doesn’t necessarily translate as well to the big screen. Invisibles’ animation is lush and there’s a lot to look at but it’s almost too busy while the tepid yet convoluted story drones on. Invisibles is definitely not adult-friendly.